557 Watts to Amps

557 watts is 4.64 amps at 120V (DC). The exact amperage depends on your voltage and whether the circuit is DC or AC.

557 Watts to Amps at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
46.42A 54.61A 31.53A
24V
DC, industrial control
23.21A 27.3A 15.76A
100V
Japan residential
5.57A 6.55A 3.78A
120V
US residential
4.64A 5.46A 3.15A
208V
US commercial three-phase
2.68A 3.15A 1.82A
220V
Legacy international / parts of Asia
2.53A 2.98A 1.72A
230V
UK / EU residential
2.42A 2.85A 1.64A
240V
US residential (dryer, range, HVAC)
2.32A 2.73A 1.58A
277V
US commercial lighting
2.01A 2.37A 1.37A
400V
UK / EU commercial three-phase
1.39A 1.64A 0.9458A
460V
US industrial motor (NEC 430.250 column)
1.21A 1.42A 0.8225A
480V
US industrial three-phase
1.16A 1.37A 0.7882A
575V
Canadian industrial three-phase
0.9687A 1.14A 0.658A

Other Wattages

This calculator provides estimates for reference purposes only. Always consult a licensed electrician and verify compliance with the National Electrical Code (NEC) and local electrical codes before performing any electrical work.